Hi Parit,
Hope everything is going well.
Just wanted to let you know that despite still seeing the same error message, I can see the full list of parameters associated with an mbox when I look in 'Available Tokens' under Profile scripts.
I'm not 100% confident using Standard to build campaigns instead of Classic yet, as I don't know what this error might entail. Have you had any luck resolving the issue?
Thanks,
Chris